CA2060487A1 - Apparatus for locating magnetizable material in a structure - Google Patents

Apparatus for locating magnetizable material in a structure

Info

Publication number
CA2060487A1
CA2060487A1 CA002060487A CA2060487A CA2060487A1 CA 2060487 A1 CA2060487 A1 CA 2060487A1 CA 002060487 A CA002060487 A CA 002060487A CA 2060487 A CA2060487 A CA 2060487A CA 2060487 A1 CA2060487 A1 CA 2060487A1
Authority
CA
Canada
Prior art keywords
magnetizable material
locating
differential
location
permanent magnet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002060487A
Other languages
French (fr)
Other versions
CA2060487C (en
Inventor
Heinz Kousek
Hansjorg Nipp
Otto Noser
Otmar Ganahl
Hans Leemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2060487A1 publication Critical patent/CA2060487A1/en
Application granted granted Critical
Publication of CA2060487C publication Critical patent/CA2060487C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/15—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Powder Metallurgy (AREA)
  • Finishing Walls (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Soft Magnetic Materials (AREA)
  • Glass Compositions (AREA)
  • Hard Magnetic Materials (AREA)
  • Burglar Alarm Systems (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Road Signs Or Road Markings (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)

Abstract

An apparatus for locating magnetizable material (5, 6) within a structure (4) includes a scanning head (1) with a permanent magnet (28) for producing a magnetic field in the structure (4). Two field plates (30, 31), adjacent one another on only one pole face of the permanent magnet (28), are interconnected by a differential circuit and measure the magnetic field of the magnet disturbed by the magnetizable material (5, 6). The differential values measured by the pair of field plates form a differential measured signal for establishing, after differentiation, the location of the magnetizable material (5, 6) within the structure (4). The location of the magnetizable material (5, 6) within the structure can be shown on a monitor (7) of an evaluation unit (3).
CA002060487A 1991-02-02 1992-01-31 Apparatus for locating magnetizable material in a structure Expired - Lifetime CA2060487C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4103216A DE4103216A1 (en) 1991-02-02 1991-02-02 DEVICE FOR FINDING MAGNETIZABLE MATERIALS IN CONSTRUCTIONS
DEP4103216.0 1991-02-02

Publications (2)

Publication Number Publication Date
CA2060487A1 true CA2060487A1 (en) 1992-08-03
CA2060487C CA2060487C (en) 2001-11-06

Family

ID=6424289

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002060487A Expired - Lifetime CA2060487C (en) 1991-02-02 1992-01-31 Apparatus for locating magnetizable material in a structure

Country Status (18)

Country Link
US (1) US5296807A (en)
EP (1) EP0506605B1 (en)
JP (1) JP3258693B2 (en)
KR (1) KR100201714B1 (en)
CN (1) CN1029032C (en)
AT (1) ATE126603T1 (en)
AU (1) AU643593B2 (en)
CA (1) CA2060487C (en)
DE (2) DE4103216A1 (en)
DK (1) DK0506605T3 (en)
ES (1) ES2076730T3 (en)
FI (1) FI107411B (en)
GR (1) GR3017343T3 (en)
HU (1) HU208744B (en)
MX (1) MX9200465A (en)
NO (1) NO305005B1 (en)
PL (1) PL168303B1 (en)
ZA (1) ZA92670B (en)

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DE19648833A1 (en) * 1996-11-26 1998-05-28 Foerster Inst Dr Friedrich Method and device for locating and identifying search objects hidden in the ground, in particular plastic mines
US6427784B1 (en) 1997-01-16 2002-08-06 Mclaughlin Manufacturing Company, Inc. Bore location system having mapping capability
US6124712A (en) * 1997-05-16 2000-09-26 The Regents Of The University Of California Apparatus and method for imaging metallic objects using an array of giant magnetoresistive sensors
CA2236636C (en) * 1997-05-29 2007-01-09 Tech Restoration Services, Inc. Method and apparatus for detecting tendon failures within prestressed concrete
DE19817953A1 (en) * 1998-04-22 1999-10-28 Hilti Ag Marking device
DE19853332C1 (en) * 1998-11-19 2000-09-07 Preussenelektra Kernkraft Gmbh Process for the electrical contacting of concrete reinforcements
DE10107188A1 (en) * 2001-02-15 2002-09-19 Mipm Mammendorfer Inst Fuer Ph Device for long-term monitoring of strong magnetic fields
DE10205000A1 (en) * 2002-02-07 2003-08-28 Bosch Gmbh Robert tracking device
DE10205002A1 (en) * 2002-02-07 2003-08-28 Bosch Gmbh Robert Locator and associated procedure
US7256587B2 (en) * 2002-06-28 2007-08-14 Solar Wide Industrial Limited Multiple sensitivity stud sensing device
US7495455B2 (en) * 2002-06-28 2009-02-24 Solar Wide Industrial Limited Stud sensing device
CA2471982A1 (en) * 2004-04-20 2005-10-20 Eldesco Corporation Piston velocity detector
US8253619B2 (en) * 2005-02-15 2012-08-28 Techtronic Power Tools Technology Limited Electromagnetic scanning imager
DE102005019239A1 (en) * 2005-04-26 2006-11-09 Hilti Ag Detector for embedded elongated objects
DE102005000053A1 (en) * 2005-05-10 2006-11-16 Hilti Ag Hand-held, scanning underground detector
DE102006000364A1 (en) * 2006-07-21 2008-01-31 Hilti Ag Hand guided position measuring instrument for surface, comprises absolute navigation sensor, which is connected with computing unit, and positioning mark is designed on housing
WO2008036811A1 (en) * 2006-09-20 2008-03-27 Eastway Fair Company Limited Apparatus and method of determining location of an object
US7504817B2 (en) * 2007-03-28 2009-03-17 Solar Wide Industrial Limited Stud sensor
EP2128649A1 (en) 2008-05-28 2009-12-02 Leica Geosystems AG Radar measuring device with a planar aerial arrangement
EP2151701A1 (en) 2008-08-06 2010-02-10 Leica Geosystems AG Radar measuring method for locating an object embedded in a medium to be investigated
US20100188088A1 (en) * 2008-10-02 2010-07-29 Certusview Technologies, Llc Methods and apparatus for displaying and processing facilities map information and/or other image information on a locate device
GB2496816B (en) * 2008-10-02 2013-07-10 Certusview Technologies Llc Methods and apparatus for generating electronic records of locate operations
US8478617B2 (en) 2008-10-02 2013-07-02 Certusview Technologies, Llc Methods and apparatus for generating alerts on a locate device, based on comparing electronic locate information to facilities map information and/or other image information
US8527308B2 (en) * 2008-10-02 2013-09-03 Certusview Technologies, Llc Methods and apparatus for overlaying electronic locate information on facilities map information and/or other image information displayed on a locate device
DE102008054448A1 (en) * 2008-12-10 2010-06-17 Robert Bosch Gmbh tracking device
CA2771286C (en) * 2009-08-11 2016-08-30 Certusview Technologies, Llc Locating equipment communicatively coupled to or equipped with a mobile/portable device
KR101310215B1 (en) * 2009-12-21 2013-09-24 한국전자통신연구원 Apparatus and method of wearable detection for underground objects
WO2011109736A2 (en) 2010-03-04 2011-09-09 Dorrough David M Obscured feature detector
US9201125B2 (en) * 2010-10-08 2015-12-01 Muller Martini Holding Ag Device for the continuous quality control of applied elements
DE202011103105U1 (en) * 2011-07-12 2012-10-22 Prozeq Sa Device for determining the state of wear of a carbon-ceramic brake disk
DE102011079276A1 (en) * 2011-07-15 2013-01-17 Hilti Aktiengesellschaft Apparatus and method for detecting an object in a ground
US9172225B2 (en) 2011-09-22 2015-10-27 Labor Saving Systems, Ltd. Induction-based reference point locator
CN106461392B (en) 2014-06-25 2019-08-20 罗伯特·博世有限公司 Positioning system with hand-held positioning unit
US10895657B2 (en) 2017-01-13 2021-01-19 Franklin Sensors Inc. Apparatus and methods for obscured feature detection with uniform electric fields
US10261208B2 (en) 2015-06-23 2019-04-16 David M. Dorrough Apparatus and methods for detecting obscured features
US10663613B2 (en) 2015-06-23 2020-05-26 Franklin Sensors, Inc. Apparatus and methods for detecting obscured features
US10613243B2 (en) 2017-04-27 2020-04-07 Franklin Sensors Inc. Apparatus and methods for obscured feature detection
US10524592B2 (en) 2015-12-01 2020-01-07 Black & Decker Inc. Picture hanging device
EP3361290A1 (en) * 2017-02-08 2018-08-15 HILTI Aktiengesellschaft Detection method for a scanning detector
DE102017209151A1 (en) * 2017-05-31 2018-12-06 Siemens Aktiengesellschaft Apparatus and method for non-destructive testing of a component
USD860995S1 (en) * 2018-01-10 2019-09-24 Zircon Corporation Handheld scanner
USD860994S1 (en) * 2018-01-10 2019-09-24 Zircon Corporation Handheld scanner
GR1009521B (en) * 2018-02-14 2019-05-15 Σπυριδων Βασιλειου Μιχαλακοπουλος Geomagnetic scanner and utilisation method thereof
CN111174902B (en) * 2019-12-31 2020-09-15 神州高铁技术股份有限公司 Magnetic steel signal processing method and system, storage medium and rail edge detection system
JP7673376B2 (en) 2020-10-28 2025-05-09 オムロン株式会社 Dimensional information management device, dimensional information management system equipped with the same, dimensional information management method, and dimensional information management program
JP7424270B2 (en) 2020-10-28 2024-01-30 オムロン株式会社 Buried object exploration device, display control method for buried object exploration device, display control program
JP7459769B2 (en) 2020-11-25 2024-04-02 オムロン株式会社 Buried object information management device, buried object information management system equipped with the same, buried object information management method, buried object information management program
BE1029685B1 (en) 2021-08-13 2023-03-13 Wooshin Labottach Co Ltd FILM FORMULATION INCLUDING VITAMIN D3
CN119355601B (en) * 2024-12-27 2025-02-28 中交第一航务工程局有限公司 A system and method for detecting residual magnetic field strength of concrete components

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CA1126818A (en) * 1978-03-27 1982-06-29 Hiroyuki Ohkubo Apparatus for sensing an external magnetic field
US4207519A (en) * 1978-05-25 1980-06-10 Otdel Fiziki Nerazrusha-Juschego Kontrolya Akademii Nauk Belorusskoi S.S.R. Method and apparatus for detecting defects in workpieces using a core-type magnet with magneto-sensitive detectors
US4573013A (en) * 1982-03-29 1986-02-25 The United States Of America As Represented By The Secretary Of Transportation Magnetic inspection of reinforcing steel rods in prestressed concrete
GB8606564D0 (en) * 1986-03-17 1986-04-23 Atomic Energy Authority Uk Magnetic discontinuity detection
DE3707419A1 (en) * 1987-03-07 1988-09-15 Standard Elektrik Lorenz Ag Magnetic field sensor
US4873655A (en) * 1987-08-21 1989-10-10 Board Of Regents, The University Of Texas System Sensor conditioning method and apparatus
DE3801627A1 (en) * 1988-01-21 1989-08-03 Honeywell Regelsysteme Gmbh Evaluating circuit for magnetic sensors
US4935698A (en) * 1989-03-03 1990-06-19 Sprague Electric Company Sensor having dual Hall IC, pole piece and magnet
US5045920A (en) * 1990-06-28 1991-09-03 Allegro Microsystems, Inc. Dual-Hall ferrous-article-proximity sensor

Also Published As

Publication number Publication date
NO305005B1 (en) 1999-03-15
EP0506605A1 (en) 1992-09-30
JPH0545472A (en) 1993-02-23
PL293350A1 (en) 1992-11-02
EP0506605B1 (en) 1995-08-16
DE59203256D1 (en) 1995-09-21
DE4103216A1 (en) 1992-08-06
CN1029032C (en) 1995-06-21
FI920434A7 (en) 1992-08-03
DK0506605T3 (en) 1995-10-16
HU208744B (en) 1993-12-28
FI920434A0 (en) 1992-01-31
HU9200291D0 (en) 1992-04-28
NO920423D0 (en) 1992-01-31
NO920423L (en) 1992-08-03
AU1071392A (en) 1992-08-06
ZA92670B (en) 1992-11-25
MX9200465A (en) 1992-10-01
US5296807A (en) 1994-03-22
ATE126603T1 (en) 1995-09-15
CA2060487C (en) 2001-11-06
PL168303B1 (en) 1996-02-29
FI107411B (en) 2001-07-31
KR920016841A (en) 1992-09-25
AU643593B2 (en) 1993-11-18
ES2076730T3 (en) 1995-11-01
GR3017343T3 (en) 1995-12-31
JP3258693B2 (en) 2002-02-18
CN1063940A (en) 1992-08-26
KR100201714B1 (en) 1999-06-15
HUT60390A (en) 1992-08-28

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